Refactor Node::showTree*() functions.

third_party/WebKit/Source/core/dom/Node.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004-2011, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 552 matching lines @@
     // This is a dual of insertedInto(), and is similar to the DOMNodeRemovedFromDocument DOM event, but does not require the overhead of event
     // dispatching, and is called _after_ the node is removed from the tree.
     //
     virtual void removedFrom(ContainerNode* insertionPoint);
 
     // FIXME(dominicc): This method is not debug-only--it is used by
     // Tracing--rename it to something indicative.
     String debugName() const;
 
 #ifndef NDEBUG
+    String toString() const;
     void showNode(const char* prefix = "") const;
-    void showTreeForThis() const;
-    void showTreeForThisInFlatTree() const;
+    String toTreeStringForThis() const;
+    String toFlatTreeStringForThis() const;
     void printNodePathTo(std::ostream&) const;
-    void showTreeAndMark(const Node* markedNode1, const char* markedLabel1, const Node* markedNode2 = nullptr, const char* markedLabel2 = nullptr) const;
-    void showTreeAndMarkInFlatTree(const Node* markedNode1, const char* markedLabel1, const Node* markedNode2 = nullptr, const char* markedLabel2 = nullptr) const;
+    String toMarkedTreeString(const Node* markedNode1, const char* markedLabel1, const Node* markedNode2 = nullptr, const char* markedLabel2 = nullptr) const;
+    String toMarkedFlatTreeString(const Node* markedNode1, const char* markedLabel1, const Node* markedNode2 = nullptr, const char* markedLabel2 = nullptr) const;
     void showTreeForThisAcrossFrame() const;
 #endif
 
     NodeListsNodeData* nodeLists();
     void clearNodeLists();
 
     virtual bool willRespondToMouseMoveEvents();
     virtual bool willRespondToMouseClickEvents();
     virtual bool willRespondToTouchEvents();
 
@@ skipping 296 matching lines @@
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showNode(const blink::Node*);
 void showTree(const blink::Node*);
 void showNodePath(const blink::Node*);
 #endif
 
 #endif // Node_h